#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int my_strlen(char str[])
{
	int num=0;
	while (*str)
	{
		num++;
		str++;
	}
	return num;
}
int main()
{
	char str[] = {"qwqwqwqwqwq"};
	printf("%d", my_strlen(str));
	return 0;
}